Forum Discussion
covered_wagon
Mar 14, 2014Explorer
wnjj wrote:covered wagon wrote:
X2 they are called collar ties or ceiling joist. Without them a roof is left precariously undone. They need to nail across from rafter to rafter with a minimum of 3-16d galv. box nails into ea. rafter.
New roof should be steeper to shed snow load. Steep roofs are stronger too
A steeper roof will put more side wind load on the support posts so may not automatically be the best choice either.
That's why my engineer calls out for 4-6'' deep holes augered into the ground, footing poured on the bottom, post then inserted and cast in place. 8x8 even 8x10 posts are specified for posts to go down the 4 foot depth cast in place. It all depends on his wind/ seismic lateral load calcs.
People... this is why it's important to do it right. Make the engineer do the design.
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